import Vue from 'vue'
import Vuex from 'vuex'

Vue.use(Vuex)

export default new Vuex.Store({
  state: {
    tableData: [
      {"id": 1, "title": "Python编程", "author": "John Doe", "copies": 4},
      {"id": 2, "title": "历史的秘密", "author": "Jane Smith", "copies": 3},
      {"id": 3, "title": "宇宙探索", "author": "Emily Brown", "copies": 2},
      {"id": 4, "title": "健康生活", "author": "Mike Johnson", "copies": 5},
      {"id": 5, "title": "数学之美", "author": "Sarah Lee", "copies": 4},
      {"id": 6, "title": "艺术欣赏", "author": "David White", "copies": 3},
      {"id": 7, "title": "编程入门", "author": "Alice Green", "copies": 2},
      {"id": 8, "title": "科幻世界", "author": "Frank Black", "copies": 5},
      {"id": 9, "title": "自然奇观", "author": "Grace Blue", "copies": 4},
      {"id": 10, "title": "音乐之声", "author": "Tom Red", "copies": 3}
    ],
    bookID:'',
    title:'',
    author:'',
    copies:''
  },
  getters: {
    bookCount(state){
      return state.tableData.length
    }
  },
  mutations: {
    deleteRow(state,index) {  //删除书本
      alert('删除了图书：' + state.tableData[index].title);
      state.tableData.splice(index, 1);
    },
    addBook(state){  //添加书本
      state.tableData.push({
        id:state.bookID,
        title:state.title,
        author:state.author,
        copies:state.copies
      });
      alert("成功添加书本：" + state.title);
      state.bookID='';
      state.title='';
      state.author='';
      state.copies='';
    }
  },
  actions: {
  },
  modules: {
  }
})
